API SMR
BREAK-RESISTANT SMR
SPHERICALLY MOUNTED RETROREFLECTORS
UNDER 2,5 µM
CENTERING
ONE-PIECE
OPTICS
80 M
MAX. RANGE
DIFFERENT
TYPES
ACCURACY MATTERS
Your tracker’s accuracy is only as good as your retroreflector. API’s Break-Resistant SMRs are constructed with a one-piece optic, eliminating the common risk of fragile glass panels shifting, separating, or fracturing. Not only are API’s SMRs durable in harsh environments, but they can track over 80 meters when used with an API laser tracker
HOLLOW SMR
Hollow SMRs use an aluminum optic with gold coated reflective surfaces. API’s specially surfaced SMR’s have a measurement range of up to 80m without sacrificing accuracy.
PRISMATIC SMR
Prismatic SMRs use a solid glass prism that protects the reflective surface from dust. These types of SMR’s are suited to outdoor environments where high dust concentrations can affect accuracy.
CONTACT
Phone: 1-800-537-2720
TECHNICAL SPECIFICATIONS
| Description | Type | Range | Centering |
| Hollow 0.5″ | Standard | 40 m | ± 0,0127 mm |
| Hollow 1.5″ | Standard | 50 m | ± 0,0127 mm |
| Hollow 1.5″ | Standard | 80 m | ± 0,0127 mm |
| Hollow 1.5″ | Precision | 50 m | ± 0,00254 mm |
| Hollow 1.5″ | Precision | 80 m | ± 0,00254 mm |
| Prismatic 0.5″ | Standard | 40 m | ± 0,0254 mm |
| Prismatic 1.5″ | Standard | 50 m | ± 0,0254 mm |
WHEN TO REPLACE SMR
Scratched Surface
Cleaning dust from the SMR optic with a rag or other abrasive material scratches the gold plating and diminishes SMR accuracy.
Drops and Breaks
An SMR should be replaced if it is dropped. Although API’s SMRs are break-resistant, dropping an SMR can flatten out the surface of the outer ball. An SMR with a flat spot causes centering inaccuracy.
Confidence in accuracy
Inaccurate SMRs reduce productivity and increase operator frustration and costs. Regularly check or replace SMRs to have confidence in measurement accuracy.